# 小整数内存池 -5 ~ 256
print(id(1))
print(id(2))
print(id(3))

print(id(25555), id(25555))
print(id(69999999999999999999999999999), id(69999999999999999999999999999))
# ???? 这不是在打我脸吗

nums = [69999999999999999999999999999, 69999999999999999999999999999, 9999, 10000]
print(id(nums[0]), id(nums[1]))  # 恒等
print(id(nums[2]), id(nums[3]))
nums[2] += 1
print(id(nums[2]), id(nums[3]))  # 9999 变成 10000 之后，地址变了，但是地址不是最后一个10000相等的地址
